Influence of external electric field on oxygen and carbon monoxide adsorption

Control of Catalytic Reactions at the Surface of a Metal Oxide Nanowire by Manipulating Electron Density Inside It

“…1,13,14 The influence of an electrostatic field (and the concomitant change in the near-surface electron density) on adsorption and catalysis occurring on macroscopic semiconductor surfaces was predicted and experimentally verified long ago. [15][16][17][18][19] This subject was revisited in connection with the development of FET-based gas sensors. [20][21][22][23] The latter property was inferred from the field dependence of the work function…”

“…Experimental observations, supported by calculations, suggest that the availability of electrons at the vacancy site affects the chemical activity of the oxide surface. ,, The influence of an electrostatic field (and the concomitant change in the near-surface electron density) on adsorption and catalysis occurring on macroscopic semiconductor surfaces was predicted and experimentally verified long ago. − This subject was revisited in connection with the development of FET-based gas sensors. − The latter property was inferred from the field dependence of the work function (or channel conductance) change upon the adsorption of a molecule to an oxide surface configured as a field-effect transistor (FET) with a chemically active gate.…”